code: def testJaxArrayRoundTrip(self, shape, dtype, gpu):
      rng = jtu.rand_default(self.rng())
      np = rng(shape, dtype)
      if gpu and jax.default_backend() == "cpu":
          raise unittest.SkipTest("Skipping GPU test case on CPU")
      device = jax.devices("gpu" if gpu else "cpu")[0]
      x = jax.device_put(np, device)
      y = jax.dlpack.from_dlpack(x)
      self.assertEqual(y.devices(), {device})
      self.assertAllClose(np.astype(x.dtype), y)
      # Test we can create multiple arrays
      z = jax.dlpack.from_dlpack(x)
      self.assertEqual(z.devices(), {device})
      self.assertAllClose(np.astype(x.dtype), z)
  
imports: import unittest
  from absl.testing import absltest
  import jax
  import jax.dlpack
  import jax.numpy
  from jax._src import config
  from jax._src import test_util
  from jax._src import xla_bridge
  from jax._src.lib import xla_extension_version
  import numpy
label_desc: Use image node_id 3 for calling the DLPackTest obj's underlying member method code with example usage: obj.testJaxArrayRoundTrip(shape, dtype, gpu) without return types